de laval



(NoModL) a Sheets-Sheet '1.

' G. DE LAVAL.

MOTOR F OR OPERATING GENTRIFUGAL MACHINES. No. 356,990. Patented Feb. 1, -1887.

l iy.

u z c V i F flfiz N. PETERS, FhclwLflhogmpher. Washington. DC,

3 Sheets-Sheet 2.

=(No Model.)

G. DE LAVAL.

MOTOR FOR OPERATING GENTRIFUGAL MACHINES.

vNo. 356,990. Patented Feb. 1, 1887.

N. PEIERS, Phnkn-Lilhogrlphen Washingmn, DMC.

' Model.) 3 Sheets-Sheet 3.

em; LAVAL. A MOTOR FOR OPERATING GENTRIFUGA'L MACHINES. No. 356,990. Patented Feb. 1, 1887.

Nv PETERS, PnmLm n hw. Washi n nnnnnn cv UN 'TED STATES PA-TENT T OFFICE.

GUSTAF DE LAVAL, or srooKHoLM, SWEDEN.

MOTQRiFOR OPERATING CENTRIFL JGAL MACHINES.

SPECIFICATION forming part'of Letters PatentN o. 356,990, dated February 1, 1887.

Application filed October 2, 1886. Serial No. 215,118. ,l-Nomodel.)

To (LZZ whom, it may concern:

Be it known that .I, GUSTAF DE LAVAL, a

I subject of the King of Swedemand a resident sifiers, and the like-by hand-power, t-heyai rangement being such as to enable very rapid rotary motion to be imparted to such machines by the turning of a handle at moderate speed. g

In the accompanying drawings, Figure 1 is a vertical section of the apparatus according to this invention applied to a De Laval creamseparator, and Fig.- 2 a horizontal section on the line 2 2 of Fig. 1. Fig. 3 represents the pinion and a part of the driving-wheel of the spur-geariugin plan, Figs L and 5 show in elevation and plan a modified form of pinion and driving-wheel with teeth oblique or inclined'instead of straight or parallel to the axis. Figs. 3 to 5 are drawn in full size; but the dimensions may, however, be varied.

a is a crank.

b c are bevel-gearing, by which the motion is transferred from the crank-handle to the upright shaft (1.

e f is spur-gearing, with teeth straight or oblique that is, parallel or inclined to the axis of the respective wheels-for transmitting the motion from the shaft d to the shaft 9.

- This latter shaft is connected by a coupling,

h, to the shaft 43 of the cream-separator Z.

m is the inlet-pipe for the milk, and n 0 are the ordinary receptacles for the cream and the skimmed milk.

p is the stand; it, its base; q, a plate supporting the step 4 and the frame s of the bearings for the shaft 9'.

t is a bracket supporting a casing, a, surrounding the rotary vessel of the separator. The bottom of the casing u is represented as provided with abearing, v, for the shaft i; but

5; this bearing may be arranged in the bracket,

if preferred. "The lower end of the shaft vl'is rounding, and rests within a leather or other suitable lining inside the cup h on the top of the shaft 9, so as to .form a friction-coupling for stopping and starting the centrifugal machine gradually.

In using the apparatus the crank ais turned, and by the gearing a rapid rotary motionisimparted to the shaft 2' and to the apparatus connected therewith."

-A.lthough there are only tivopairs of toothed wheels in this apparatus, the necessary speed can be imparted to the shaft i without turning the crank a more than about thirty revolutions a minute. Nevertheless the stand is of small dimensions. The gearing e f is preferably provided with very small teeth,such as illustrated-that is to say, the gearing pitch is less to'cause the teeth to work together without jar 'or concussion. This gearing, which is located in the lower part of the stand, and is, in the example'shown in the drawings, entirely inclosed in the base of the stand, imparts to the apparatus nearly eighteen and a half revolutions for every revolution of the shaft d, or when the shaft (1 makes three hundred and eighty. revolutions the shaft 9 or i, situatedless than seven and seven eighths inches apart from (1, makes more than seven thousand revolutions.

I claim as my invention 1. The combination, with the vertical shaft i, of the hollow base 70, the vertical standard 19, the bracket t, extending out from the side of the standard and containing the bearing for the shafti and supporting-the casing a, the bearing at the lower end of the shaft, and a small pinion, f, with fine teeth thereon, the wheel 6 within the base is, gearing into the pin ion f, the vertical shaft d and bearings for the same, the bevel-pinion a and bevel-wheel b and the crank a, and the shaft in bearings at the top of the standard and connecting the crank and bevel-gear, substantially as specified.

2. The combination, with the vertical shaft 13, of the hollow base k, the vertical standard 10, the bracket t, extending out from the side of the standard and containing the bearing for the shaft 6, the shaft 9, coupled to the shaft '5, and a small pinion, f,with fine teeth thereon, and the I Signed by me this 28th day of August, A. 10 bearings within the hollow base for the shaft D. 1886. g, the wheel 0 within the base k, gearing into the pinion f, the vertical shaft d and bearings GUSTAF DE LAVAL.

5 for the same, the bevel-pinion c and bevel- Witnesses: wheel b and the crank a, and the shaft in bear- AUG. BIALMBERG, ings at thetop ofthe standard 1) and connect- OTTO NILSON. ing the crank and bevel-gear, substantially as Both of Stockholm. specified. 7 l 

